{
  "items": [
    {
      "date": "string",
      "model": "string",
      "prompt_tokens": 0,
      "completion_tokens": 0,
      "total_tokens": 0,
      "cached_prompt_tokens": 0,
      "request_count": 0,
      "cost_micros": 0
    }
  ]
}

{
  "status_code": 400,
  "detail": "Bad Request",
  "extra": {}
}